{ "containers": { "cna": { "affected": [ { "platforms": [ "all" ], "product": "AWS SDK", "vendor": "Amazon", "versions": [ { "lessThan": "2.0.0", "status": "affected", "version": "stable", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "value": "Thai Duong" } ], "descriptions": [ { "lang": "en", "value": "A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM (and other AEAD ciphers such as AES-GCM-SIV or (X)ChaCha20Poly1305) used by the SDKs to encrypt messages, an attacker can craft a unique cyphertext which will decrypt to multiple different results, and becomes especially relevant in a multi-recipient setting. We recommend users update their SDK to 2.0.0 or later." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N", "version": "3.1" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-310", "description": "CWE-310 Cryptographic Issues", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2020-11-16T11:55:11.000Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google" }, "references": [ { "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/google/security-research/security/advisories/GHSA-wqgp-vphw-hphf" }, { "tags": [ "x_refsource_CONFIRM" ], "url": "https://aws.amazon.com/blogs/security/improved-client-side-encryption-explicit-keyids-and-key-commitment/" } ], "source": { "discovery": "EXTERNAL" }, "title": "Robustness weakness in AWS KMS and Encryption SDKs", "x_generator": { "engine": "Vulnogram 0.0.9" }, "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "security@google.com", "ID": "CVE-2020-8897", "STATE": "PUBLIC", "TITLE": "Robustness weakness in AWS KMS and Encryption SDKs" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "AWS SDK", "version": { "version_data": [ { "platform": "all", "version_affected": "<", "version_name": "stable", "version_value": "2.0.0" } ] } } ] }, "vendor_name": "Amazon" } ] } }, "credit": [ { "lang": "eng", "value": "Thai Duong" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. 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